Home / 56,839.25-78,437.12-31,347.97

Finding the Fourth Proportional to 56,839.25, 78,437.12 and 31,347.97

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Solution

The fourth proportional to 56,839.25, 78,437.12 and 31,347.97 is: 43,259.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,839.25 : 78,437.12 = 31,347.97 : x
  2. Step 2: Convert to fraction form
    56,839.25/78,437.12 = 31,347.97/x
  3. Step 3: Cross multiply
    56,839.25x = 78,437.12 × 31,347.97
  4. Step 4: Simplify right side
    56,839.25x = 2,458,844,366.92
  5. Step 5: Solve for x
    x = 2,458,844,366.92/56,839.25
  6. Step 6: Final answer
    x = 43,259.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.